Do I go out to Harvard yard and take a random sample ? of sophomores to study meditation?

是不是可以在哈佛大二学生里随机抽样,来研究冥想？

哈佛公开课 - 幸福课课程节选

On--this week because the first concept sheet is different than the rest -you were using the Daily Plate Dietary Assessment -we'll send out this week a sample concept sheet.

这周,因为第一周的观点报告,与众不同,你们用了日常饮食评估表,我们这周会下发一个观点报告范例

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This is very important,which is why I am doing it: "If we want to know how fast a human being can run, then it is no use to average out the speed of a "good sample" of the population; it is far better to collect Olympic gold medal winners and see how well they can do.

这话非常重要，是我作这个研究的原因：,“如果想知道人类最快能跑多快，那从好的样本中测出平均数是“,没用的;,而应该收集田径类奥运冠军的信息,看他们能跑多快。

哈佛公开课 - 幸福课课程节选

Also today, one of the teaching fellows will be sending out a sample concept sheet, although you may have already seen it from the website, but in addition to that, a series of instructions.

会有一位助教给大家发一篇论文模板,可能你们都在网站上看过了,不过除此之外,还有几项说明

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Somebody told me, by the way, that the sample concept sheet that we have listed on the website couldn't be downloaded, so we'll fix that, but we'll also send you out by email a sample concept sheet, along with guidelines for how to prepare them.

有人告诉我,顺便说下,网站上所列的观点报告范例不能下载,我们会进行修复的,同时我们也会通过电子邮件将范例报告,以及备写指南一并发给你们

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

One person might be a little low one day, another person might be high, a lot of people might-- you might happen to have captured them on an average day, but overall it averages out, so you get a representative sample.

一个人可能某一天少吃些,另一个人可能多吃些,很多人都会这样,你可能正好得出人们,平均每天的摄入量,但把它的整体平均一下,就得到有代表性的结果

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选